Naseby 1645



The Naseby 1645 is a 16.45 mile road race that weaves it way through stunning rural Northamptonshire, passing seven Battle of Naseby 1645 memorials and viewpoints. Being staged in February, as runners are building up their mileage towards the 26.2 miles, it provides a perfect marathon prep event for those training for Spring marathons.

Race information

A unique challenge, at the perfect time of year for those preparing for Spring marathons, the Naseby 1645 weaves through rural Northamptonshire passing seven Battle of Naseby 1645 memorials and viewpoints.

Race HQ, Start/Finish – Marston Lodge Farm, Marston Trussell.

Because we are operating road closures at the Naseby 1645 event, we are advising that all runners should feel confident in completing the distance within 4 hours.
This works out at an average running pace of 14m 35s per mile.


Entries will open soon on Let’s Do This. Prices are £30 (UKA affiliated) and £32 (unaffiliated).

Minimum age for entry is 18 years old on race day only.

Entries, and transfer of entries, will close 7-days before the event.

Start time/location

Registration will be open from 07:00 with the race starting at 09:00.
Race numbers (containing timing chips) are to be collected from registration on the morning of the race.  No numbers will be posted out before the event.

Race HQ, the start and finish, will be at Marston Lodge Farm, Dick’s Hill (off Sibbertoft Road), Marston Trussell, Market Harborough, LE169TT.
Please approach Marston Lodge via Sibbertoft Road and NOT via Dicks Hill.

There will be parking available at Marston Lodge but please car share where possible.  Please allow plenty of time to park and register before the race. Those parking in the overflow parking area will need to allow for a short 10 minute walk to registration.

The route

The route remains unchanged from 2024.

The route is challenging and you are guaranteed a PB for the distance (unless you ran it last year!) as there is nothing like it in the area. It is entirely run on roads, many of which will be closed during the race to traffic, ensuring the highest standards of safety for runners. This is a challenging and undulating course having a total ascent of 289m.

In line with UKA rules, headphones are not permitted, other than the bone conductor type.

You can view the route, starting just outside Marston Trussell, and download the GPX file here (use the ‘More’ button, then ‘Export as File’ to download the GPX Track file).

Certificate of Course Accuracy

Road Race Licence

On-course support

As in previous years, we will have water stations at regular intervals along the route. These will be located at around the 3, 6, 9 and 13.5 mile marks, as well as one at the finish.


There will be trophies for the top 3 male and female finishers, and all finishers will receive a specially commissioned Naseby 1645 event medal.
Big Bobble Hats will be at the finish of the event, with their hats on sale.  They have also kindly offered to provide prizes to our podium finishers.

Big Bobble Hats

Race t-shirts

Men’s and Women’s short sleeved technical t-shirts will be available to buy priced at £16. These can be pre-ordered up to 3 weeks before the event. If you decide to log back in to amend your order (to order a t-shirt, not to edit details), then Let’s Do This will charge an additional card handling fee.
There will not be t-shirts available for purchase on race day.
A link to the sizing charts is available here: MALE / FEMALE

Free race photos!

As with all Race Harborough events – you don’t pay for your race pics! Free digital downloads of your race are available to download soon after the race finishes and we’ll announce their availability on our Facebook page.


For 2025, the main focus of our charity support will continue to be the Jubilee Foodbank, Market Harborough, and the Weston Favell Centre Foodbank, Northampton. Everyone who enters a Race Harborough event in 2025 will be given the opportunity to make a donation to support these good causes and, we hope, our event community will rise to the challenge and help make a difference to those that need it most.

Latest updates

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Event photos

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